I mean with things like sex trafficking, labor trafficking, etc. IMO it should be called slavery, and those affected need to be rescued from slavery.
A pimp enslaves people
The Tate Brothers (allegedly) enslaved people.
IMO, referring to sex/labor trafficking to slavery will show it just how evil it actually is.
Just recently looked it up
Trafficking = the act of buying or selling usually illegal goods
Source
I guess you’re using that loophole created by the word “usually”. Even though trafficking is usually illegal by definition, it doesn’t always have to be. Building upon that, you can actually use that word for legal activities too, even though most people will misunderstand you as they are automatically thinking of illegal activities.